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Expression data from U87 glioma cells and U87-2M1 glioma cells

ABSTRACT: An experimental lung metastasis assay was used to derive an invasive subline of U87 that is metastatic in mice. We used microarray analyses to find out over-represented gene ontologies that can explain the observed enhanced invasiveness of U87-2M1 cells. Early passage U87-2M1 cells and parental U87 glioma cells from ATCC were selected for RNA extraction and hybridization on microarray

ORGANISM(S): Homo sapiens

SUBMITTER: Jia Kai Lim

PROVIDER: E-GEOD-35169 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression data from U87 glioma cells and U87-2M1 glioma cells

Project description:An experimental lung metastasis assay was used to derive an invasive subline of U87 that is metastatic in mice. We used microarray analyses to find out over-represented gene ontologies that can explain the observed enhanced invasiveness of U87-2M1 cells.

2012-12-31 | GSE35169 | GEO

Expression data from U87-2M1 glioma cells transduced with baculoviral control decoy vector or baculoviral miR-10b decoy vector

Project description:MicroRNA-10b may target numerous genes in gliomagenesis. The target genes of miR-10b may differ according to the cellular context. We used microarray analyses to determine the phenotypic effects and gene targets of miR-10b by silencing miR-10b in invasive U87-2M1 glioma cells. Early passage U87-2M1 cells treated with the baculoviral control decoy vector or miR-10b decoy vector were selected for RNA extraction and hybridization on microarray

2012-12-31 | E-GEOD-35170 | biostudies-arrayexpress

Effects of silencing miR-10b in an U87-2M1 glioma line - an invasive in vivo derived subline of U87 glioma cells

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2012-12-31 | E-GEOD-35208 | biostudies-arrayexpress

Trancriptome profiling of glioma cell line U87 and U251 with LAMP2A knockdown

Project description:The objective of the study was to examine the gene expression changes in glioma cell line U87 and U251 with LAMP2A knockdown. There were 15 samples in total- U87-1, U87-2, U87-3, U87-1812-1, U87-1812-2, U87-1812-3, U251-1, U251-2, U251-3, U251-1812-1, U251-1812-2, U251-1812-3, U251-1813-1, U251-1813-2, and U251-1813-3. U87-1 to U87-3 and U251--1 to U251-3 were used as the control groups (CON). U87-1812-1 to U871812-3, U251-1812-1 to U251-1812-3, and U251-1813-1 to U251-1813-3 were used as the experimental groups (shLAMP2A-1 and shLAMP2A-2). The total RNA of each sample was extracted from the stable transfected glioma cells by using TRIzol reagent. Then the RNA samples were processed for high throughput transcriptome sequencing on Illumina HiSeq 3000 platform. There were two types of libraries: the circRNA, mRNA, and lncRNA were all constructed by removing rRNA (one library, three types of RNA were analyzed together), and the insert fragment was about 300bp; the small RNA was constructed and analyzed separately, mainly microRNA of about 22bp. Results: among 60612 cleaned mRNAs, 781 were differentially expressed in U87-1812 group compared with U87 group, 146 were differentially expressed in U251-1812 group compared with U251 group, 43 were differentially expressed in U251-1813 group compared with U251 group (padj ≤ 0.05 and expression change ≥2 fold). The differential expressed genes distributed in all chromosomes. Functional annotation with GO and KEGG enrichment revealed the top functional groups including inflammation, DNA replication, cell adhesion, TNF, IL17, and axon guidance signaling pathways.

2024-07-15 | GSE270618 | GEO

Expression Profiling: Guanylate Cyclase Soluble Subunit Beta-3 (GUCY1B3) overexpression U87 MG cells

Project description:Total RNA were extracted from Guanylate Cyclase Soluble Subunit Beta-3 (GUCY1B3) overexpression U87 MG stable cell lines and U87 MG cells. Three RNA samples of each of the two cell lines were used for microarray analysis to compare gene expression profile Guanylate Cyclase Soluble Subunit Beta-3 (GUCY1B3) was cloned into pCDNA3.1D/V5-His-TOPO plasmid (Invitrgen) and then transfected into U87 MG (ATCC HTB-1) cells to generate stable overexpression cells. RNA from the stable cell lines and U87 MG were used for microarray

2016-06-15 | E-GEOD-83344 | biostudies-arrayexpress

Discovery of Gene Expression Signature in the Overexpression of miR-145 in U87 glioma cell.

Project description:We have employed whole RNA microarray expression profiling as a discovery platform to identify genes regulated by overexpression of miR-145 in U87 glioma cell. Lentivirus containing miR-145 coding sequence was infected to U87 cell to make U87 overexpressing miR-145. We did genome microarray between U87 and U87 overexpressing miR-145.

2011-03-25 | GSE28121 | GEO

Hypoxia-responsive gene expression profile of U87 MG glioblastoma cells and their exosomes.

Project description:How cancer cells adapt to hypoxia during tumor development remains an important question. The hypothesis tested in the present study was that tumor cell-derived exosome vesicles (also known as microvesicles or extracellular vesicles) are mediators of hypoxia-dependent intercellular signaling in glioblastoma (GBM), i.e. highly aggressive brain tumors characterized by hypoxia and a vascular density that is among the highest of all human malignancies. In vitro hypoxia experiments and studies with patient materials reveal the enrichment in exosomes of hypoxia-regulated mRNAs and proteins, several of which were associated with poor patient prognosis. We show that cancer cell exosomes mediate hypoxia-dependent, phenotypic modulation of stromal cells in vitro and ex vivo, resulting in accelerated GBM tumor angiogenesis and growth in mice. These data suggest that exosomes constitute potent mediators of hypoxia-driven tumor development, and circulating multiparameter biomarkers of tumor hypoxia. U87 MG glioblastoma cells were grown at normoxic (21% oxygen) or hypoxic (1% oxygen) conditions for 48 hours. Conditioned media from normoxic and hypoxic cells were then used to isolate exosomes by differential centrifugation. Both cells and exosomes were lysed in Trizol reagent, and RNA was isolated.Total RNA from all samples (four types of samples in three biological repilicates) was subjected to genome-wide transcriptional analysis with Illumina HumanHT-12 V3.0 expression beadchip. Gene expression profile obtained from hypoxic U87 MG glioblastoma cells was compared to the profile of normoxic control cells. Analogically, gene expression profile obtained from hypoxic U87 MG cells was compared to the profile of exosomes secreted by normoxic U87 MG cells.

2013-03-20 | E-GEOD-45301 | biostudies-arrayexpress

RNA-seq Analysis of U87: Ctrl, U87:EGFR, U87:EGFRvIII, U87:EGFR+EGFRvIII and U87:EGFR+EGFRvIII KRAS KO

Project description:RNA-seq Analysis of U87: Ctrl, U87:EGFR, U87:EGFRvIII, U87:EGFR+EGFRvIII and U87:EGFR+EGFRvIII KRAS KO

| PRJNA483397 | ENA

Discovery of Gene Expression Signature in the Overexpression of miR-145 in U87 glioma cell.

2011-03-24 | E-GEOD-28121 | biostudies-arrayexpress

Microarray analysis of U87 glioma cells after transient knockdown of FOXM1

Project description:FOXM1 plays a key role in M phase in normal cells and is overexpressed in human glioma. We found that FOXM1 deprivation could sensitize the glioma cells to TMZ chemotherapy. To find out the mechanistic regulation of FOXM1 in chemo-resistant genes, we used microarrays to select the potential genes regulated by FOXM1 which dominates in glioma chemo-resistance. U87 glioma cells were transiently transfected with none-target siRNA or FOXM1 siRNA. Total RNA were extracted after 48 hours and subjected to the microarray.

2012-08-10 | E-GEOD-40051 | biostudies-arrayexpress

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